Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8537488 | Method for specifying control value for controlling clearance adjustment amount between head and disk, disk drive device and manufacturing method thereof | Yasunori Kawamoto, Minoru Shimada, Takuma ITO | 2013-09-17 |
| 5221479 | Filtration system | Sumio Ohtani | 1993-06-22 |
| 4876007 | Plate-type filter cartridge with internal support | Kyoichi Naruo, Sumio Ohtani, Masao Tsuruta, Ikuro Moriya, Masanori Ishiguro +1 more | 1989-10-24 |
| 4871456 | Stacked filter cartridge with porous filter support | Kyoichi Naruo, Sumio Ohtani, Ikuro Moriya | 1989-10-03 |